FR2296142A1 - Dispositif d'eclairage - Google Patents

Dispositif d'eclairage

Info

Publication number
FR2296142A1
FR2296142A1 FR7442462A FR7442462A FR2296142A1 FR 2296142 A1 FR2296142 A1 FR 2296142A1 FR 7442462 A FR7442462 A FR 7442462A FR 7442462 A FR7442462 A FR 7442462A FR 2296142 A1 FR2296142 A1 FR 2296142A1
Authority
FR
France
Prior art keywords
plate
lighting unit
light source
transparent plate
parallel edges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7442462A
Other languages
English (en)
French (fr)
Other versions
FR2296142B3 (https=
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7442462A priority Critical patent/FR2296142A1/fr
Publication of FR2296142A1 publication Critical patent/FR2296142A1/fr
Application granted granted Critical
Publication of FR2296142B3 publication Critical patent/FR2296142B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)
FR7442462A 1974-12-23 1974-12-23 Dispositif d'eclairage Granted FR2296142A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7442462A FR2296142A1 (fr) 1974-12-23 1974-12-23 Dispositif d'eclairage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7442462A FR2296142A1 (fr) 1974-12-23 1974-12-23 Dispositif d'eclairage

Publications (2)

Publication Number Publication Date
FR2296142A1 true FR2296142A1 (fr) 1976-07-23
FR2296142B3 FR2296142B3 (https=) 1977-09-23

Family

ID=9146512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442462A Granted FR2296142A1 (fr) 1974-12-23 1974-12-23 Dispositif d'eclairage

Country Status (1)

Country Link
FR (1) FR2296142A1 (https=)

Also Published As

Publication number Publication date
FR2296142B3 (https=) 1977-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse